Gas producer and burner for steam-boilers



(No Model.)

J. MURPHY. GAS PRODUCER AND "BURNER FOR STEAM BOILERS.

N0. 573,899. Patented 1390.29, 1896;

UNITED STATES PATENT OFFICE.

JAMES MURPHY, OF CHICAGO, ILLINOIS.

GAS PRODUCER AND BURNER FOR STEAM-BOILERS.

SPECIFICATION forming part of LettersPatent No. 573,899, dated. December29, 1896. Application filed April 15, 1895. Serial No. 545,711. (Nomodel.)

To (all whom it may concern.-

Be it known that 1, JAMES MURPHY, of Chicago, in the State of Illinois,have invented certain new and useful Improvements in Gas Producers andBurners for Steam-Boilers, of which the following is a specification.

My invention relates to means for producing and burning gas from crudeoil for the purpose of heating steam-boilers; and the object of myimprovements is to provide means for delivering the oil into a retortarranged above a passage-way for steam where by the gas may be carriedand delivered into an air-flue, the end of such air-flue being locatedin the fire-box of the boiler and opening toward said retort, so thatthe burning of the gas may be made to take place Where the air and steamissue from said air-flue into the fire-box, as hereinafter more fullydescribed. I attain this object by the means illustrated in theaccompanying drawings, in which- Figure 1 is a longitudinal verticalsection representing the brickwork for supporting a tubular flue-boilerand showing the fire-box beneath the boiler, but omitting the upperportion of the brickwork and the flue in connection therewith, which maybe of any ordinary construction. Fig. 2 is a detail showing a plan Viewof the retortand the oil and steam pipes and air-flue. Fig. 3 is adetail showing avertical longitudinal section of the parts shown in Fig.2, and Fig. 4 is a detail showing an enlarged section of the upper endof the oil-pipe and its cap. i

In the drawings, A designates the brickwork beneath the boiler B.

G C designate doors located in opposite ends of the brickwork forafiording access to the fire-box beneath the boiler.

The parts thus described are of ordinary construction, and it istherefore deemed unnecessary to describe them more in detail.

I prefer to construct the bottom D of the fire-box of fire-clay in orderto make it better resist the action of the heat. Upon or beneath theupper surface of the bottom of the fire-box I place an air-flue a, whichcommunicates with the outer air and extends under the fire in order toheat the air before it is delivered into the fire-box. This air-fluecommunicates with a pipe (1, which is turned back and faces in theopposite direction from that of said air-flue.

E is the retort, which is connected above an enlarged tube or chamber E,supported 011 the bottom of the fire-box immediatelyin :front of theopen end of the pipe Ct. The oil-pipe e is connected with an oil tank orsupply (not shown) placed in the ordinary manner above the point ofdischarge in the retort and provided with a valve e for shutting off orturning on the supplyof oil. Said oil-pipe enters the chamber E at theside and is then turned up and rises vertically to very nearly the upperpart of the retort, as shown in Fig; 3. At its upper end it is providedwith a cap 6 which has a small opening, through which a small stream ofoil may be made to issue and strike the interior of the retort on theupper side.

A steam-pipe F, provided with a valve f and leading from the dome of theboiler, is made to enter the chamber E, so that when said valve is opensteam will flow into said chamber at the bottom", and F is acontinuation of said steam-pipe,'connected at the opposite side of saidchamber E and, passing through the pipe 0., is turned back to correspondwith said pipe and terminates near the end of the same and conveys thegas and steam from the chamber E to the firebox.

The operation is as follows: A temporary fire of wood or other lightcombustible mate rial is first built on the bottom of the fireboX aroundor over the retort for the purpose of heating the same and raising steamin the boiler. After such temporary heating the valve 6' and theoil-pipe is opened, allowing the oil from the tank to pass into theretort. The pressure of oil in the oil-pipe will be sufficient to causea jet of oil passing through the small opening in the cap 6 to strikethe interior of the retort at the top, causing the oil to be separatedinto fine globules or spray and to be converted into gas by the heat ofthe retort. Steam is at the same time turned on, and the force of steamentering the chamber E will drive the gas out through the gas and steampipe F, so that the steam and gas will issue from the end of said pipenear the end of the air pipe a. The air entering through the air-fluewill be more or less heated by this time, so that hot air will issuefrom the air-pipe a with the steam and gas, and the gas Will be ignitedand will continue the burning, keeping the heat in the retort andfire-box sufficient to continue the production of steam and gasindefinitely. By a use of the means adapted to operate in the mannerdescribed crude oil may be completely converted into gas Without leavingany residuum to clog up the apparatus, and the entire gas product maybeforced into the fire and completely consumed.

It is contemplated that the apparatus may be applied to all kinds ofsteam-boilers, includin g stationary boilers and locomotive-engines, andit is obvious from the foregoing description that it may be applied toany of these.

Having thus described my invention, What I claim, and desire to secureby Letters Patent, is-

1. A gas producer and burner for steamboilers comprising a fire-boxprovided with an air-flue in its bottom adapted to heat the air as itenters the fire-box through the flue by means of the heat communicatedto the bottom of the fire-box, a retort arranged in front of thedischarge end of the air-flue Within the fire-box, an oil-pipe enteringthe retort and having a contracted opening adapted to throw a jet of oilagainst the interior upper surface of the retort, a gas-chamber arrangedbeneath and communicating with the retort, a steam-pipe communicatingwith the gas-chamber and a steam and gas pipe communicating with thegas-chamber opposite from the steam-pipe and passing thence to andentering the air-flue and discharging n ear the discharge end of theair-flue as specified.

2. In a gas-producer for steam-boilers the combination with a fire-boxof a retort placed Within the fire-box, an oil-pipe entering the retortand adapted to throw a jet of oil against its upper interior surface, agas-chamber beneath and communicating with the retort a steam pipecommunicating with the gaschamber near its bottom, and a steam and gaspipe communicating with the gas-chamber on the oppositeside from thesteam-pipe, said steam and gas pipe being turned back so as to throw ajet of gas and steam upon the retort as specified.

JAMES MURPHY. \Vitnesses:

ANNIE M. ADAMS, MAURICE CONWAY.

